has the shape of a line with negative slope, intersecting torque axis at Tmax, intersecting speed axis at Smax, and it is not too hard to prove the maximum power such a motor can deliver, is

Pmax = (1/4)*Smax*Tmax

Although, even with those generous assumptions, the numbers Dewalt is quoting give a Pmax of around 500 watts, (1/4)*(60 rad/s)*(38 N*m) = 570 W, which to me seems far too high, by about a factor of 10.

It may be that dewalt (and others) are talking about different things to me

-The attached graph is the spec for the motor used on our electric car. It states unequivocally that the torque is 1.15Nm -

This is a motor I know to be large, operating on 24 volts and drawing 20 amps. (500 watts). This doesn't start to compare with the drill motor even considering the drill motor has a considerable gearing down.